UP-6031 Air Permeability Tester test Machine for Paper
UP-6031 Air Permeability Tester test Machine for Paper
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By using the principle of differential pressure method, the pre-processed sample is placed between the upper and lower measuring surfaces and a constant differential pressure is formed on both sides of the sample. Under the action of differential pressure, gas flows through the sample from the high-pressure side to the low-pressure side. According to the area, differential pressure and flow rate of the sample, the permeability of the sample is calculated.GB/T458, iso5636/2, QB/T1667, GB/T22819, GB/T23227, ISO2965, YC/T172, GB/T12655